Packing.



G. F. VAN BRUNT.

193.3?,367' APPLICATION FILE MAY 22, 1913. Apr. 27 5L 5 la] a u'imiluuumiiiini JY uunmummmnmmmmum Y w llllllllllll-mlllllllIH n H ml Il x l VmT/YUIVENTOR GEORGE FRANKLIN VAN BRU-NT, l or -IIEWANEE ILLINOIS.

PACKING.

A:Ligarse7; l

To all whomz't may concern :Bef it known that I', GEORGE F. VAN

' BRUNT, a citizen of the UnitedStates, residing at vKewanee, in

State of Illinois, useful Packing,

the county of Henry and have invented anewand of which the following is a specification.V

Y This invention has reference to improvel ments in packing, and is designed to provide amea'ns whereby a movoble member maybe packed with a cheapgrade `of packing material and one which would 'ordinarily' wear rapidly, without the movements of the valve v V,producing such vrapid wear. `ing member which may fbe applied about VThe invention -comprises a metallic packa valve vstem or piston rod, or other moveable member to be surrounded by, some, cheap grade of packing, such.y as wicking or "the like, which will elfectively resistjleakage L. vvithout,'being subjected to 'wearlof moving parts'and, therefore, will retain its effectiveness for ylong periods of time.r

the-metallic portion of the packing is in The invention will .be best understood ,from-a consideration of the Afollowing detailed description, taken in connection with f lthe accompanying drawings forming a. part f 7 offtliis specification, with the further underv standing ythat while/thel drawingsl showl a practical form of the invention, the latter is not confined to any strictr conformity with the showing of the'v drawings but may be "changed and modified so long as such fdeparture from the salient features vvof. the

changes and modifications mark no material invention.

, In the drawings:-'Figure 1. isa longitudi- A nal diametric section cfa packing 50 Y* f' 'and' provided with they some parts being shown gland with a movable member traversing the same present invention, in elevation. Fig.

Specification of Letters Patent. Application mea May 2a, 1913.

' cordance with the which the present invention is applied.

JIS

-as in Fig. 2, the beveled ends 8a lodgedwithin the chamber 5 elasticity ofv the packing s v Patented Apr. 27, 1915. serial No. veaass.

2 is a view similar to Fig. 1` but showing a somewhat different form `of the invention. Fig. 3 is a section on'the line'B-S of Fig. 1. Fig. 4 is a plan view of one form of the metallicfmember of the'packing spread out vor displayed. Fig. 5 is a similar view of another form of the invention.

Referring to the drawings, there is shown aV rod 1 traversing a ysupporting member 2, f

and to the s pporting member, which may have a'threaded extension is applied a gasket'43in the form of va cap nut in the kparticular construction shown, and

this cap nut incloses a packing-chamber 5` in which maybe lodged packing 6. In some structures the body member 2 will represent `a portion of ra valve casing, while inI VVother structures it may represent a portion of a cylinder head in yaccordance withV whether the rod lis a valve stem or a piston "'rod. .'Therefore, the membersk 1 and 2 may represent any structure to whichy the invention is applicable, and the cap nut 4 may glandor cap nut which may vary in acparticular structure to rIhe present invention has Vto do with a metallic protector V'through which the movable member '1 passesandsurrounding which the packing 6 tisfarranged.

'f l. In Figs'l, 3 and 4 the protecting member 'the form of Van elongatedV strip 7 ofV sheet metal having theY opposite ends 8 *,reverselyvbeveled. In Figs. 2 and 5 there is Va shorterland widerstrip 7a having ends 8 reversely beveled. In the Y structure best shown in Fig. 4 the Vstrip v7 may be provided withA av series of perforations 9 andwhile such lan arrangement is advantageous, it is r,not obligatory.

. With the strip 7a applied'about the rod ,1, are brought or nipple 8, there represent anyk .packing member such as a 'ftogether, so that the-strip is in surrounding or encircling relation inclosed by 4the capV nut 4. The packing 6 within the chamber 5 is forced by the cap nut -into close engagementwith the strip 7a, thus causing the latter to snugly hug the rod 1,v while the Awill maintain the tight fit of the strip 7 aabout the rod 1A even to the rod and is` though there should be considerable wear of the strip 7 a'.

In the structure shown-in Figs. 1,3 and 4: the strip 7, which is relatively greatly elongated, is wound helically about that part of the rod 1 which traverses tliepacking chamber 5, one end of the strip engaging the inner end wall of a cap nut 1, and the other end engaging'against a ring 9*`- lodged in a counterbore inthe body 2 about the usual passage provided for the rod 1, this ring or' bushing 9a being a commonl expedient,

especially in valve heads; y

The pack'ng 6 mayl consist ofthe cheap forms of packing, such as wicking or waste or any material which would be liable to relatively quick wear if engaged directly by the'rod l and may replace-some of the high pricepackings which are found necessary under prevailingpractice to withstand wear and other deleterious conditions. The

Qrod. 1, however, is in directVV contact with a metallic surface n presented by the strip 7 or 7 a as the case may be, and by makingV this metal .strip of sheet metal of ksuitable kind, as, for instance, brass or bronze where the rod 1 is of steel, there is provided a smoothv A fitting surface surrounding the rod 1 offering but little resistance to the movement of the rod, and at the same time by the expansion of the packing Gthe sheet metal strip 7 is held in close contact with the rod throughout tht portion of ,the rod which isl at the time in traversing relation to the packingy chamber. In :the form shownrin AVVFigs. 1, 3 and e the strip is` wound about the rod in the form of a closerrhelix'of j, severalvturnsand the snug fit of this metallic protecting lining-renders this part of the packing practically fluidl tight, while `the exterior packing prevents anyv passage s surfaces of the ofiiiuid under pressure outside` of the metalliclining. VHowever, the packing 6 hav- V l ing practicallyno wear upon it, will'V main- Ytain the lfluid-tight condition for an indefinitely long time, and the entireV packing structure is in" practice farv superior `to-expensive metallic packing'or expensive packings of other. characters which ultimately `become too worn to then longer maintain the iuid rtight condition desired and must be renewed at considerable.expense'.v The metallic portion of the'present packing is in fact, when in position, in the form of a plain cylinderl without projectionsand the perforations which may be provided through the metalv strip will aid in the distribution of lubricantbetween the contacting metal lining and the rod 1. y I

What is claimed is ,Y

1.The combination with a rod, of packand provided with anentering` packing gland, a metallic ring material also. wi`

in the form of al closeV tiemities beveled in oppositek directions one tothe other, said stripsurrounding the rod within the packing chamber, and packing material within the chamberlexterior yto the strip and compressible by the gland into fluid tight relation to the metalfstrip and compressing rod within the gland, the strip being impervious to the packing material. n

2. The combination with a rod, of a packing means therefor chamber surrounding the rod,'acontinuous elongated and relatively narrow strip of sheet metal of even width throughout the greater portion of its length and wound helically into a plurality of turns about the rod within the packing chamber, and pack- A hin Vthe chamber exterior to thev strip lof Vsheet metal and fcompressedv within the chamber 'against the outer surface of thel sheet metal to forceI the Y comprising a packing Y latter into packingrelation with-the rod, Y

the packing being vcompressed into ffluidY tightv relation to the' sheetmetal, andsaid sheet metal 'strip being impervious to the compressed packingmaterialinthe chamber.

3. The :combination with airod, of apa'cke ing therefor comprising an elongted narrow.

strip of sheet Ymetal with relation tothe other,said strip being wound -about thev rod a plurality ofl timesV hglx. 'snugly fitti-151g Y Y ofequal width throughoutythegreater portionY` of its length and ioo the rod, vand said strip vbeing provided withl Y ,Y

minute perforations,

andV a surrounding j mass of packing vmaterial compressed into 1 fluid tight'relation to'Y the strip-and rodjand "holding the stripfin'jftlie wound condition iin contact vwiththe rod, the minute perfoi A Vrations being permeable tolubricating material and impermeable Yto" the compressed`V x f;

' iio packing material. Y Y Y 2l. The combination with a rod, of a'packing therefor comprising a' packing-chamber vand packingglandrentering'the chamber, a mass of packing material within"V the ychainber, a metallic lining for the Apacking'mate- A.rial interposedV .between the rod and said material and comprising anV elr'ingatedA narrow strip .of grs'ubstantially even v width throughout the greater-'portion- Vof .length f 1 and wound about the rod a plurality of. Vtimes into the form of a close helix,v saidV strip beingy provided with Van elongated vseries .of minute perforations pervious ,to lubricatingfmaterial and. impervious to: the

surrounding packing material.

5. A packing l for -rods'A comprising fan', elongated narrow flat metallicstrip .offra Vlength to encirclethe rl @plurality l my signature material exterior to the metallic strip and in the presence of two Witnesses.

Wholly separated by the latter from the rod, GEORGE FRANKLIN VAN BRUNT and means for compressing the packing material into iiuid tight condition and forcing Witnesses: the metal strip against the rod. ALBERT GRIGGS,

In testimony, that I claim the foregoing as MYRON L. TURNER.

timeslin the form of a close helix, packing my own, I have hereto aixed Copies of this patent' may be obtained for five cents each, by addressing the Commissioner of Patent- Washington, D. C. i l 

